Concrete mold



Sept. 21 1926. 1,600,433

M. STIELER CONCRETE MOLD Filed Jul 18, 1925 74677; eases WWII/lull, 7 VI Patented Sept. 21, 1926.

PATENT- OFFICE."

. MARTIN STIELER, OF CHICAGO, ILLINOIS.

concnn'rn MOLD.

Application filed July is, 1925. Serial No. 44,458.

My invention relates to im rovements in concrete molds especiallyadapted for the construction of chimneys and ject the provision of animproved mold of this character adapted and arranged to positionreinforcing memberstherein.

Other objects appear hereinafter.

The invention consists in the combinations and arrangements of partshereinafter described and claimed.

The invention will be best understood by reference to the accompanyingdrawings forming a part hereof and in which,

Fig. 1: is a top plan view of a mold embodying the invention.

Fig. 2; an enlarged partial transverse sec tion of said mold.

Fig. 3; a detached view of one of a pluralof supporting bracketsemployed in the mold, and

Fig. a; an enlarged detail view of the inner end of a supporting bracketemployed in the construction. v

The preferred formof construction as illustrated in the drawingscomprises a plurality of supporting brackets 4, each provided at itsinner end with horizontally separated arms 5, having transverseperforations 6 therein for the reception of nails 7 or the like asindicated. t its outer end each of the brackets 4; is provided with adependiiig inwardly turned arm 8 and registering notches 9, are providedas shown to engage a supporting bar 10 secured to the outer portion ofthe outer side 11 of an annular concrete mold 12. The supporting bar 10is carried by suitable brackets 13 engaging suitable adjusting screws 1%mounted in a suitable frame 15 arranged over and around the mold forsupporting and manipulating the same. The specific construction of themold and the frame work for supporting or manipulating the sameconstitute no part of my present invention andneed no furtherdescription here.

The form of mold illustrated is an annular mold made up of sheet metalsections and arranged to form a chimney with vertical reinforcingmembers 16 extending vertically through the walls thereof. The brackets1d are designed and arranged to be mounted at suitable intervals on thesupporting bar 10 to project inwardly over the top of the mold' form andso that the arms 5 may be engaged around lGlllfOlClIlg. members 16 andheld in place thereon by means of nails 7 passed has for its ob- 7 moldform is moved upwardly to provide for a new section and the process thuscontinued until the chimneyis completed. Ob-

viously, by this arrangement, the brackets 4: may be utilized as theconstruction continues to hold thereinforcing members 16 accurately inposition as each mold section is filled. If it is desired to change theposi-" tions of the reinforcing members or the number of re nforcingmembers employed, 'as the building progresses, the brackets 4 maybe'readily adjusted on the bar 10 to suit such variations asis desired.

Where reinforcing members of different sizes are employed the differentsets of perforations 6 are utilized for the nails 7.

Yfhile I have illustrated and described the preferred form ofconstruction for carrying my invention into effect, this is capable ofvariation and modification without departing from the spirit oftheinvention; I, therefore, do not wish to be limited to the precisedetails of construction set forth, but desire to avail myself of suchvariations and modifications as come within the scope of the appendedclaims.

Having described my. invention, what I claim as new and desire to secureby Letters Patent is:

1. In a concrete mold the combination of a form for containing the,concrete mixture; a bracket mounted to adjust along the side and toextend over the top of said form; and means atthe endpofjsaid bracketfor detachably engaginga vertical reinforcing member projecting from thetop of said form, substantially as described.

2 a concrete mold the combination of a form for containing the concretemixture and open at the top; a plurality of brackets adjustably mountedon one side of said form to extend over thet-op thereof; andhorizontaliy separated arms at the end of said brackets over said form,there being transverse perforations in said arms to receive a nail orthe like, substantially as described. 3. In a concrete mold thecombination of an annular form for containing the con crete mixture; asupporting bar secured to the outer portion or the outer side of saidtor-1n near the top thereof; a plurality of brackets, each bracket beingprovided With notches slidably engaging the top and bottom edges of saidbar, said brackets extending thence over the top of said form; and meansat the inner ends of said brackets for detachably engaging verticalreinforcing members projecting from the top of said form, substantiallyas described.

4-. In a co crete mold the combination of an annular form for conta ningthe concrete 'slidably engaging the top and bottom edges of said bar,said brackets extending thence over the top of said form; andhorizontally separated arms at the inner ends of said brackets, therebeing transverse perforations '111 said arms for the reception of nailsor the like, substantially as described.

In testimony whereof I have signed my name to this specification.

'MARTIN S'IjI-ELER.

